* [PATCH] Enable /proc/diskstats for /dev/ramX @ 2012-11-19 7:16 Ryo Onodera 2012-11-19 7:26 ` Ryo Onodera 0 siblings, 1 reply; 4+ messages in thread From: Ryo Onodera @ 2012-11-19 7:16 UTC (permalink / raw) To: Nick Piggin; +Cc: linux-kernel Signed-off-by: Ryo Onodera <ryoqun@gmail.com> --- drivers/block/brd.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/drivers/block/brd.c b/drivers/block/brd.c index 531ceb3..181b2d7 100644 --- a/drivers/block/brd.c +++ b/drivers/block/brd.c @@ -332,6 +332,7 @@ static void brd_make_request(struct request_queue *q, struct bio *bio) sector_t sector; int i; int err = -EIO; + int cpu; sector = bio->bi_sector; if (sector + (bio->bi_size >> SECTOR_SHIFT) > @@ -348,6 +349,12 @@ static void brd_make_request(struct request_queue *q, struct bio *bio) if (rw == READA) rw = READ; + cpu = part_stat_lock(); + part_stat_inc(cpu, &brd->brd_disk->part0, ios[rw]); + part_stat_add(cpu, &brd->brd_disk->part0, sectors[rw], + bio_sectors(bio)); + part_stat_unlock(); + bio_for_each_segment(bvec, bio, i) { unsigned int len = bvec->bv_len; err = brd_do_bvec(brd, bvec->bv_page, len, -- 1.7.9.5 ^ permalink raw reply related [flat|nested] 4+ messages in thread
* Re: [PATCH] Enable /proc/diskstats for /dev/ramX 2012-11-19 7:16 [PATCH] Enable /proc/diskstats for /dev/ramX Ryo Onodera @ 2012-11-19 7:26 ` Ryo Onodera 2012-12-23 21:41 ` [PATCH] brd: enable diskstats Ryo Onodera 0 siblings, 1 reply; 4+ messages in thread From: Ryo Onodera @ 2012-11-19 7:26 UTC (permalink / raw) To: Nick Piggin; +Cc: linux-kernel Hi, I'm Ryo Onodera. I created this very tiny patch to enable /proc/diskstats for /dev/ramX. I'm contacting Nick Piggin as the maintainer of ramdisk ram block. This is my first patch to the Linux kernel. Sorry if this is not the expected way of submitting patches. Regards Ryo Onodera On Mon, Nov 19, 2012 at 4:16 PM, Ryo Onodera <ryoqun@gmail.com> wrote: > Signed-off-by: Ryo Onodera <ryoqun@gmail.com> > --- > drivers/block/brd.c | 7 +++++++ > 1 file changed, 7 insertions(+) > > diff --git a/drivers/block/brd.c b/drivers/block/brd.c > index 531ceb3..181b2d7 100644 > --- a/drivers/block/brd.c > +++ b/drivers/block/brd.c > @@ -332,6 +332,7 @@ static void brd_make_request(struct request_queue *q, struct bio *bio) > sector_t sector; > int i; > int err = -EIO; > + int cpu; > > sector = bio->bi_sector; > if (sector + (bio->bi_size >> SECTOR_SHIFT) > > @@ -348,6 +349,12 @@ static void brd_make_request(struct request_queue *q, struct bio *bio) > if (rw == READA) > rw = READ; > > + cpu = part_stat_lock(); > + part_stat_inc(cpu, &brd->brd_disk->part0, ios[rw]); > + part_stat_add(cpu, &brd->brd_disk->part0, sectors[rw], > + bio_sectors(bio)); > + part_stat_unlock(); > + > bio_for_each_segment(bvec, bio, i) { > unsigned int len = bvec->bv_len; > err = brd_do_bvec(brd, bvec->bv_page, len, > -- > 1.7.9.5 > > > ^ permalink raw reply [flat|nested] 4+ messages in thread
* [PATCH] brd: enable diskstats 2012-11-19 7:26 ` Ryo Onodera @ 2012-12-23 21:41 ` Ryo Onodera 2012-12-23 21:47 ` Ryo Onodera 0 siblings, 1 reply; 4+ messages in thread From: Ryo Onodera @ 2012-12-23 21:41 UTC (permalink / raw) To: Nick Piggin; +Cc: linux-kernel, Namhyung Kim, Jens Axboe Signed-off-by: Ryo Onodera <ryoqun@gmail.com> --- drivers/block/brd.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/drivers/block/brd.c b/drivers/block/brd.c index 531ceb3..181b2d7 100644 --- a/drivers/block/brd.c +++ b/drivers/block/brd.c @@ -332,6 +332,7 @@ static void brd_make_request(struct request_queue *q, struct bio *bio) sector_t sector; int i; int err = -EIO; + int cpu; sector = bio->bi_sector; if (sector + (bio->bi_size >> SECTOR_SHIFT) > @@ -348,6 +349,12 @@ static void brd_make_request(struct request_queue *q, struct bio *bio) if (rw == READA) rw = READ; + cpu = part_stat_lock(); + part_stat_inc(cpu, &brd->brd_disk->part0, ios[rw]); + part_stat_add(cpu, &brd->brd_disk->part0, sectors[rw], + bio_sectors(bio)); + part_stat_unlock(); + bio_for_each_segment(bvec, bio, i) { unsigned int len = bvec->bv_len; err = brd_do_bvec(brd, bvec->bv_page, len, -- 1.7.9.5 On Mon, 2012-11-19 at 16:26 +0900, Ryo Onodera wrote: > Hi, > > I'm Ryo Onodera. I created this very tiny patch to enable /proc/diskstats for > /dev/ramX. > > I'm contacting Nick Piggin as the maintainer of ramdisk ram block. > > This is my first patch to the Linux kernel. Sorry if this is not the expected > way of submitting patches. > > Regards > > Ryo Onodera > > On Mon, Nov 19, 2012 at 4:16 PM, Ryo Onodera <ryoqun@gmail.com> wrote: > > Signed-off-by: Ryo Onodera <ryoqun@gmail.com> > > --- > > drivers/block/brd.c | 7 +++++++ > > 1 file changed, 7 insertions(+) > > > > diff --git a/drivers/block/brd.c b/drivers/block/brd.c > > index 531ceb3..181b2d7 100644 > > --- a/drivers/block/brd.c > > +++ b/drivers/block/brd.c > > @@ -332,6 +332,7 @@ static void brd_make_request(struct request_queue *q, struct bio *bio) > > sector_t sector; > > int i; > > int err = -EIO; > > + int cpu; > > > > sector = bio->bi_sector; > > if (sector + (bio->bi_size >> SECTOR_SHIFT) > > > @@ -348,6 +349,12 @@ static void brd_make_request(struct request_queue *q, struct bio *bio) > > if (rw == READA) > > rw = READ; > > > > + cpu = part_stat_lock(); > > + part_stat_inc(cpu, &brd->brd_disk->part0, ios[rw]); > > + part_stat_add(cpu, &brd->brd_disk->part0, sectors[rw], > > + bio_sectors(bio)); > > + part_stat_unlock(); > > + > > bio_for_each_segment(bvec, bio, i) { > > unsigned int len = bvec->bv_len; > > err = brd_do_bvec(brd, bvec->bv_page, len, > > -- > > 1.7.9.5 > > > > > > ^ permalink raw reply related [flat|nested] 4+ messages in thread
* Re: [PATCH] brd: enable diskstats 2012-12-23 21:41 ` [PATCH] brd: enable diskstats Ryo Onodera @ 2012-12-23 21:47 ` Ryo Onodera 0 siblings, 0 replies; 4+ messages in thread From: Ryo Onodera @ 2012-12-23 21:47 UTC (permalink / raw) To: Nick Piggin; +Cc: linux-kernel, Namhyung Kim, Jens Axboe Hi, I'm Ryo Onodera. This is a resend for my earlier patch. Because I got no reply, I've added other people as CC, picking from the commit history of the relevant file. I created this very tiny patch to enable /proc/diskstats for /dev/ramX. I'm contacting Nick Piggin as the maintainer of ramdisk ram block. As mentioned above, I'm also contacting some related people to get more attention. This is my first patch to the Linux kernel. Sorry if this is not the expected way of submitting patches. Regards On Mon, 2012-12-24 at 06:41 +0900, Ryo Onodera wrote: > Signed-off-by: Ryo Onodera <ryoqun@gmail.com> > --- > drivers/block/brd.c | 7 +++++++ > 1 file changed, 7 insertions(+) > > diff --git a/drivers/block/brd.c b/drivers/block/brd.c > index 531ceb3..181b2d7 100644 > --- a/drivers/block/brd.c > +++ b/drivers/block/brd.c > @@ -332,6 +332,7 @@ static void brd_make_request(struct request_queue *q, struct bio *bio) > sector_t sector; > int i; > int err = -EIO; > + int cpu; > > sector = bio->bi_sector; > if (sector + (bio->bi_size >> SECTOR_SHIFT) > > @@ -348,6 +349,12 @@ static void brd_make_request(struct request_queue *q, struct bio *bio) > if (rw == READA) > rw = READ; > > + cpu = part_stat_lock(); > + part_stat_inc(cpu, &brd->brd_disk->part0, ios[rw]); > + part_stat_add(cpu, &brd->brd_disk->part0, sectors[rw], > + bio_sectors(bio)); > + part_stat_unlock(); > + > bio_for_each_segment(bvec, bio, i) { > unsigned int len = bvec->bv_len; > err = brd_do_bvec(brd, bvec->bv_page, len, ^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2012-12-23 21:48 UTC | newest] Thread overview: 4+ messages (download: mbox.gz follow: Atom feed -- links below jump to the message on this page -- 2012-11-19 7:16 [PATCH] Enable /proc/diskstats for /dev/ramX Ryo Onodera 2012-11-19 7:26 ` Ryo Onodera 2012-12-23 21:41 ` [PATCH] brd: enable diskstats Ryo Onodera 2012-12-23 21:47 ` Ryo Onodera
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